Nazi Megastructures "Season - 3" (4/6) : Hitler's Killer Subs
For educational purposes
Hitler planned a submarine to outperform all others. The Type 21 was the world's most advanced submarine: Hitler's sea-faring super weapon.
Hitler planned a submarine to outperform all others. The Type 21 was the world's most advanced submarine: Hitler's sea-faring super weapon.
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Learning